| County | D or R | Early votes—in person + mail | Early turnout |
|---|---|---|---|
| Harris | D | 477,543 | 17.39% |
| Dallas | D | 315,090 | 21.09% |
| Bexar | D | 240,648 | 18.15% |
| Tarrant | D | 260,801 | 21.23% |
| Travis | D | 219,486 | 23.21% |
| Collin | R | 167,934 | 21.29% |
| Denton | R | 155,327 | 22.58% |
| Fort Bend | D | 138,084 | 23.74% |
| El Paso | D | 81,986 | 15.44% |
| Montgomery | R | 78,124 | 16.03% |
| Williamson | D | 120,671 | 25.56% |
| Hidalgo | D | 83,396 | 17.89% |
| Brazoria | R | 61,767 | 23.64% |
| Galveston | R | 56,903 | 22.67% |
| Bell | R | 37,875 | 15.35% |
| Cameron | D | 40,752 | 16.70% |
| Nueces | R | 36,701 | 16.86% |
| Lubbock | R | 41,190 | 20.16% |
| Hays | D | 50,473 | 24.80% |
| Smith | R | 31,362 | 19.10% |
Vote counts include both in-person and mail ballots.
